Warp stop motion



I July 24, 1928.

H. E. KHOURY wARP s'roP MOTION Filed Sept.l21,/ 1926 4 Sheets-Sheet Har/ y j?. Khoury.,

fw Mm l( affoznmw July 24, 1928. 1,678,255

I H. E. KHouRY WARP STOP MOTION Filed sept. 21, 1925 4 sheets-sheet 2 fm f7 ff v atbozmgd July 24,192.2 O 1,618,255

` H. E. KHOURY WARP STOP MOTION v Filed sept. 21, 1926' 4 Sheets-Sheet 3 July 24, 1928. 1,678,255 A H.E. KHOURY VIARP STOP MOTION Filed Sept. 21, 1926 4 Sheets-Sheet 4 Patented .uly 24, 1928.

j uISuTi-=1DisrATia's* KHOURY, oF NEW BEDFORD,

EARRY E.

WARP STOP MOTION, INC., A CORPORATION OF MA'SSACHUSETTSL" WARP s'ror MOTION.

Appiicanonied september '21, 192e s'rfiaino. 13,sa2.` t

The present invention relates to warpstop motions for looms, and` hast-odo with stop motions of the general type disclosed in my Patent No. 1,527,196, granted February 24, 1925. i Y f An object of rthefpr'esent invention is' to provide a stop motion which vis simple, iny

otherwise Stopping the looni being transf mitted to the heddles: which lock the bar.

Attempts have been made to "overcomethis" objection by associating with the heddle adment, which serves to stiften the heddles. This expedient is objectionable for'various reasons, among others,l that itcomplicates the construction of the harness frame, and

is not always effective'.

The present invention seeks to avoid this objectionl by providing a. warp stop motion, y in which there is substantially nov strain nn,-k

posed upon either the detector bar or the heddles when the loom is stopped. A further object of the invention is to provide a` mechanism which ma be adjusted, in order to insure immediate stopf ping of the loom, should a warp thread breakV- and to provide for accurate ope-ra.- tion of the various parts',

The foregoing and "other objects of the invention which have more to do with the details of the structure, will become obvious as the description proceeds in connection with a. preferred embodiment of the inven-v l tion shown in the accon'ipanying drawings, whereinz-f- "y, p p i Figurel is laside elevationalview, showing a portion of the loom and` its [frame in dotted lines, Figure 2 is afront elevational view, showi ing more clearly the relation of the `Various parts, y A

Figure 3 is a. fragmentary horizontal sectional view on the line BLS of Figure 2,

Figure 4 is arverticalsection oneubstantially the line *Li-4; of Figure 2. f

8;-8 of Figure 9,

]acent the detector bar, an abutment ele# Figure 5 is a" vertical sectional view through a harness frame, showing the rc2 latlonof the parts' and the normal position of Athe detector bar,

Figure 6 is afview similar tuFiguie j5, showing the l (ne` fans,

Figure Figure 8V is a'vertical ksection on the line `Figure Q is a: fragmentaryfsectional view, showing the construction a't one' end ofthe detector bar, i i" Figure 1() 1s an elevational view of a "har-A ness frame, showing a somewhat modified construction, and

Figurell is an end view/looking toward the left in Figurel'O. l l

VReferring to thedrawings for a more de-A tailed description, 10 (Fig. 1) indicates'lconventionally a yportion of a loom providedl with a plurality of harness frames A11,7which have metallic side portions 12 connected by top and-bottoni crosslp-ieces 14'. The frame is reinforced bycross bars 14, Whichgeirtend" through the heddles 15-` The latter have" at theirupper ends, lojpenin,'gsf16 toi receive a cross bar 14, and also a detector bar17, the

latter being angular in cross section, in or# derv to fit within a. notch 18 at Vthe upper` end of the slot 16, and there be held againstV detecting movemenu which, in the present instance, is of rocking character; In other words, the detector bar 17 is adapted to o'scillate or rock kabout its longitudinal axis,-

and it is provided with the rib 19, adapted i to `fit within the no'tch`18 when one of the We thread. e T 1e,detector bar normallyin the tion "uutmted inFlglfeS 5 and s,- fmdla is he'ddles falls, because 'olf a broken or slack detector bar locked when aliedf 1' MASSACHUSETTS, AHSSIGNOR 7 iS a vertical Sectional view taken through `the brackets, showing the` constri'rc-ir t ,non of @neef lthe Contact elements.

yieldingly mailitained this positionrby Y means of an encircling spring 2O (FigQg),

which has one `21" fastened-to the harness frame, and its other end 22 extending through a. slot 23 in a. `sleeve 241, "which, is"

fixedly secured upon the end yof thedeteotor bar by niean'smof afsetlscrew 25; The move: mentvof they detector bar in Val,clockwise'direction,"as viewed in Figures' 5 andqS, may beimited, as bymeans of a .collarl 26,v ,fas-1 tened by means ofr a set screw 27 on t-hj devtector bar, and having a circumferentially cut-away portion 28, Within which ts -astop Enger 29 upon a stop plate 30. One end of the slot or cut-away portion 28 provides a shoulder 28, which is normally.' held against the finger 29 ig. 8) .by means of the spring 20. In this position, the ribv19 upon the detector bar is out of alignment with the notches 18 in the iheddles, Aand as the harness frame rises, carrying the detector bar, the rib 19-Will not tit Within the heddle notches 18. s y l The'sleeve 24 hasfa projecting ringer 31 adapted to engage an element upon the loom as the harness framemoves, and thus vthere is imparted to the detector barits detector movement, Which', in the present instance, is a rocking or oscillatory one. The sleevekhas also a second ro'ectino i'inGer 32 Which itsy 1 1n o y a through an opening 33 in a movable member 34mounted at 35 vupon the harness `frame for pivotal movement undergtheinfluence of the detector bar. As yWill` be understood, the member 34 rocks on its supporting pin 35 under the influence of the detector bar,

and thus has a movement relative to the detector bar, and also simultaneously With the latter. Furthermore, when the, detector bar'` isreturned toits normal position by the coil spring 20, the member l34 lis actuated .ffromthe same through the detector bar.

is normally arranged out of the pathoi al yielding member upon the loom frame, butr s against movement, the' member 34 is held in the .pathy of such yielding elem This member 34, as Will-,latervbe described,

When a vfallen heddle locks the detector bar ent, and thus effects stopping ot' the loom. l f Referring noW to the parts of'thefmech-f anism Which co-operate with the `projecting n .ringer 31 and the movable member 34, tl'iere 4upon the bracket. y The lever is-held ina is positioned upon the loom frame, abracket 36 secured to the frame, as by means of bolts 37. The bracket has an upstanding portion 38 Which carries a lever .v 39 pivoted ,at 40,

substantially horizontal position (Fig. 2) by means of a coil spring 40 secured by ascrew! stud 41 and lock nuts 42 to one` end ot' the lever. At the other side oi' its fulcrum v40,

, `the lever carries a plurality of contact *ele` ments 43, corresponding in numberfto/.the

number oi' harness frames or projecting itin-gv gers 31 (in the presentinstance tivo, With;l which .they co-operate to rock the detectors' as the harness frames descend, andcarry the 4 fingers 31 against the topsuriiaces'or'the detector elements.k Each detector elem-ent (Fig. is substantially T-shaped, having a top cross head 43"and aQscreW-threaded stem 44, Which has fitted thereon an adjust ing nut`45 arranged between upper and lowerivebs 46, 47 7) of the bracket. As lWill be understood, rotation of the .nuts 45 upon the stems of the contact elements Will'adjust the latter vertically. These nuts may vbe locked against accidental rotation.

by means of a locking device in thei'orm of a 'liattened pin v49, extending between the 4Websl 46, 47 ofthe bracket behind the 'lock nuts. `The locking device 49 has yterminal portions 50, which normally gravitate to the substantially vertical position illustrated in Fig. 2, and thus maintain the locking device inthe positioninore clearly shown in Fig. 7.

ln this position of the locking device, there ris not sufiicient clearance betvveen'pthev same and the nuts to permit the same to be ro'-` tated. However, by simply turning `the locking device to bring the ends in a horizontal plane, the nuts may be freely rotated4 to adjust the contactlmembers vertiy cally lIt will befunderstood that as the harness frames descend, the fingers 31fupon the'detector barsengage the top surfaces of the contact elements, and the vparts are rockedrv` from the position illustrated in Fig. 5 to that y illustrated in Fig. `6.l lShould there 'be a in Fig. 5, to which position it normally tends to returnrunder the ini'iuence Aof the springl 20. ,The detector bar is thus retained 'in the' position illustrated in Fig. 46 bythe locking vdetector bar, and as it rises, itmay interlock With tn ejremainder of the heddles.

It vvillvbe `further understood that the rocking movementl of the detector bar imfL parts an oscillating movement ltothe mov` able member 34. (Fig. 9) upon the harness frame, and vvhen the detector bar i3 locked,

as the heddle frame ascends,- .the member 34 is held in the verticalp'osition'illustrated b thedotted linesin Fig. 4.

At the uppeiyend of the bracket portionI 38, there is vpiv'oted-a second lever 52 by means ot' the Jfulcrum pin 53. One end oit" the lever 52VcarriesV a plurality of contact elements 5,4, havingthreaded stems 55, upon which tit adjustingnuts 56, the latter being arranged between Webs 5T, 58 of the bracket.`

The nuts 5,6 are held against accidental rotation by means of a locking device 59v similar to the locking device 49 of the ,lorver ylever 39. Eachfcontacting element has an -out- Wardly projecting finger 60, Which is ar yrangedto ,one side of the movable'element 34 upon the harness frame when th-e detector bar is in its normal or unlocked positionr (Fig. 5) l as the harness frame rises. The relative positions of these parts is illustrated clearly in Fig. 4. However, When'the detectorbar is locked by the heddles, the upper forked end V34 of the member 34is positerasse tioned inthe same vertical plane with the finger 60, and as the harness frame rises, will engage the finger 60 and raise the end of the lever 52.

The vlever 52 may be connected in any suitable manner with the shipper lever, so as to effect stopping of the loom; A preferred connection illustrated 'in the drawings consistsfoi' the pitman link 62 depending from the lever` 52 and connected with anA intermediate lever63 pivoted at 64 upon a tailpiece 65 oli the bracket '36. This lever 63 is formed in two parts,"to permit of longitudinal adjustment, having a pin and slot oonnection 66, andits rearend 67 carries a depending linkS, which is secured to a lever 69 mounted upon a block 70, which is in turn seouretkby means of a set screw 71, upon a reciprocable'rod 72. The rod 72 may be mounted `for sliding movement in a frame bearing 73 (Fig. 1), and at its other end may be secured to aA lever 74 twhich engages the shipper lever 75. This connection bez tween the lever 52 and the shipper lever forms Y no part of the present invention,

since is it disclosed ina co-pending application, Serial No. 120,37 8, filed July 6, 1926. The lever 69, in its normal position, is ar- Vranged out of the path or' a knock-off ele- 3:-

Inent 77, which may be positioned upon any moving power operated part of the loom, such as the lay L. When one end of the lever 52 is raisedby a locking detector rod, this results also in theiraising of the end 69 (Fig. 1) of the lever 69,7bringing the same into the path of the knock-oli' element 77, and effecting stopping of the loom.

An important feature of the invention is the arrangement of the parts whereby the loom is stopped, kwithout imposing upon either the-detector bar or the heddles a twisting or torsional` strain. When a allenheddle locks the detector bar, this maintains the movableelement 34 (Fig. 4) in a substantially vertical position (see the dotted line position ol' Fig. 4), and in this position it engages the finger on the top lever 52 as the harness frame rises. Any impact or strain resulting from such engagement is transmitted directly to the fulcrum support or ypivot ,35 olf the member 34. 'There is no tendency to rotate the detector bar in a clockwise direction (Fig. 4), due to the vertical position. oii-themember 34, and such movement is also `limited by means of the shoulder 28 on thecollar 26. Thus the collar' 26 and the member 34 serve to receive all strain incident' `to the operation of the stop mechanism, Vand there is no necessity i'or reinforcing the heddles or providing abutmentV means to prevent twisting or distortion of the `same in theoperation of the stop Amechanism. H f.

i Referring to Figs. 1,0 and 11, there is shown asornewhat modiiied construction, in

which thesingle harness frame 11 is provided with a plurality ofwdetector v.bars 19. The two 'detector' bars `are arranged vone slightly above the other, and are connectedv at one end of the frameby means of short arms 80, which extend vertically'v and are `interconnected by means of a link 81. At the opposite side of the harness frame, one of the detectors is extended to carry a sleeve 24', corresponding to the sleeve 24 of Fig. 9, this sleeve'being provided with the projectingfiinger 31 and a second finger 32', which operates a 1novable-member`34, pivoted at 35 upon the harness frame. This construction is otherwiseno diderent from the form previously described. However, it will be understood that it isJ useful in connection with a plurality of banks of heddles arranged within a single harness frame. Each bank of heddles will be provided with a detector bar associated therewith, and adaptedto be locked by the heddles when a warp thread breaks or slackens. Y i

- I claim 1. In a warp stop motion for looms, the combination with a heddle frame having a series of heddles supported by warp threads, of a movable detector bar mounted in the heddle frame, the heddles being formed to engage and lock the bar against movement when a warp thread breaks, and vmeans adapted to give the bar a detecting movement as the heddle frame moves vand eiective to stop the loom when the bar is locked against movement, said means comprising a bracket positioned upon the loom frame, an

element on saidv bracket adapted to impart a detecting movement to thebar, a yielding element movable through the bar when the latter is locked, and`-means mounted forA movement with the heddle frame and movable with the 'detector bar serving to engage said yieldingmember only when the detector bar is locked. l

2. In a warp stop motion for looms, the combination with a heddle frame having a series of heddles supported by warp threads, ola; movable detector bar mounted in the`r heddle frame, the heddles being formed to engage and lock the bar againstmovement when a warp thread breaks, and means adapted to give the bar a detecting movement as the heddle frame moves and effective to stop theloom when the bar is locked against movement, said means comprising a` bracket positioned upon the loom frame, an elementV on said bracketfadapted toV impart a detecting movement to the bar, a yielding element movable through the bar when vthe latter is f locked, andV means mounted for movement with the heddle frame and movable yrelative to the detector bar and also with the latter during its detectinfr movements serving to engage said yielding-[element only when the detector bar is locked.` v

les"

l 3. In' a' Warp stop motion forlooms, the combination With a heddleframe having a series ofheddles suppor'ted'by Warp threads,

of a movable detectorbar mounted inthe f llieddle frame, the heddles being formed to engagexand lock thebar against movement when, a Warp thread breaks, and means adapted to give the bar a detectingmovement as the heddle trame moves and eiieeitiveto stop the loom Whenthe barv is lockedk against movement, said means comprising a bracket positioned uponk the Vloom frame,an

element onr said bracket adapted to impart a. detecting movement, a yielding element 4movable rthroi'igh the bar vwhen the latter isr locked, and means on `the heddle frame movf Vtirate said yielding member Without `placingV a torsional, sti-ain upon the heddles.

4t., In a Warp stop motion for looms, the

combination with a heddle framefhaving a` series ot heddles supported by Warp threads,

f 'of va movable detector bar mounted in the heddlefiame, the heddles being formed to engage and lock the bar against movement when a. `Warp thread breaks, and means adapted to give the bar a detecting movement as ytheheddle frame moves and 'effective to stop the loom When the baris locked against movement, said means comprising a bracket positioned upon the loom frame, a yielding element on said bracket adapted to impart a detecting movement tothe bar, a second yielding element movable through the bar When the latter is locked, and means mounted for movement with the heddle rameand movable by the detector bar and 'relative thereto serving to engage said last mentioned yielding member onlyy When the detector .bar is locked` said means serving to actuate said yieldingV member without placing a torsional strain upon the heddles or detector bar. y s

5. In awarp stop motion :tor looms comprising a heddle :trame having mounted therein a movable detector-bar adapted to be locked against movement by a fallen heddle, and loom stopping means effective only when the detector bar is locked comprising contact means on the loomv comprising al vertically adjustable element having a lthreaded stem, a bracket supporting Vsaid element and receiving said stem, an ad- `iusting nut on said stein, and means onjtlie' bracket t'or looking said nut against accidental rotation.

G. In a Warp stop motion for looms comprising a plurality of heddleframe's each,

having mounted therein a movable detector bar, means'on the loom, eiective, tostop the loom-When the bar is locked by a fallen-heddle andto rock said bars, said means coniprising abracket on the loom frame, a plui'ality 'of vertically adjustable Contact ele' rvments on' said bracket each having a threaded stein yfitting inthe bracket, anut on each stem adapted to effect vertical adjustment ofthe contact element, andimeans on the bracket adapted to lock a plurality of said nuts against accidentalrotation.-v v

'4". ln-a rWarp stop motion for. looms, the

collbinationuivith aheddle frame khaving aL series or' heddles supported/byivarp threads, of amovable detectorbarmounted in the `heddle frame, the heddles being formed to engage and lock the bar against movement when Warp thread breaks, and means adapted to stop ,the loomavhen-the detector bar is lockedby-a fallen h eddle, said means y comprising 'a member mounted for. movement With thev heddle frame and movable relative tothe detector bar, means on the loomadaptedf to be engagedby said meinbery through movement ofy the heddle frame and act-nate said bar and `member as the lieddleframe moves in one direction Whereb f the bar is given its detectingfino'vement, and `an element engageable by said member, only Whenthe detector bar yis locked and as the heddle frame moves.r v f 8. ln a Warp, stop motionforlooms, the combination with a heddle frame having a series of lieddles supported bywarp threads, of a movable detector bar mounted in the heddle frame, the vheddles being formed to engage and lock the bar against movement when Warp thread breaks, and means adapted to 'stop the loom when the detector bar is locked by a fallen lieddle, said means comprising a member mounted for movement with the heddleframe andvmovable relative to the detector ban-means on the loom adapted to be engaged by said lmem-` 9.. ln a Warp stopA motion for looms, thev combination with a .heddle' frame having a series of heddles supported by` Warp threads,-

of a movable detector bar mounted in the heddle trame, the heddles being formed to engage and vlock the bar against movement 4ivhen ka Warp thread breaks, andy means adapted to stop the loom when the detector bar is lockedby a fallen lieddle, said .means comprising a member mounted for movement with the lheddle trame vand movable relative to the'detector bar, meanson the loom adapted to actuate said bariand member as the lieddle `trame moves in 'one ,direc--v tion whereby the bar is given its detecting.;

in'ovement,v and an element engageableby said member as the 'heddle frame moves in v bar, and also With the latter during its de-` the opposite direction, said element being actuablev Without placing a torsional` strain upon the heddles or detector bar.

10..,In Warp stop motion for looms, the f combination with a heddle frame having a `series of heddles supported by Warp threads,

of a` movable vdetector bar mounted inthe heddle trame, the heddles vbeing formed lto 'engage andv lock thebar against movement when. a `Warp thread breaks, and means adapted ,to stop the loom when the detector bar is locked, said means comprising a member mounted `for movement With the heddle frame and movable relative to the detector bar, and also by the latter during its de- 1LIn1a Warp stop motion for looms, the

`combinationwith a heddle `frame having a series of heddles supported by warp threads, of a movable detector bar mounted in the l1eddle'.framethe heddles being formed to engage the lock bar against movement when a Warp thread. breaks, andmeans adapted to vstopl the loom when. the detector bar is locked, said means `comprising a member mounted for movement With thev heddle fframe and pivotally movable relative to the detector bar, and also with the latter during its detecting movement, means kon the loom frame adapted to be engaged as the heddleframe movesin one direction to impart/a detecting movement to said bar and to 'move said member, and an elementen the loom frame adapted to be engaged by said member as the heddle frame moves.

12.y In a Warp stop motion Jfor looms, the combinationv with a heddle ,frame having a series of heddles supported by Warp threads, of a movable detector bar mounted in the heddle frame, .the lieddles being formed to engage and lock the bar against movement When a Warp thread breaks, and means adapted to stop the loom when the detector bar is locked, said means comprising a member mounted Jfor movement vvvith the heddle frame and movable relative to the detector tecting movement, means on the loom frame adapted to be engaged as the heddle trame moves in one direction to impart a detecting movement to said bar andl to move said member, and an element on the loom frame adapted to be engaged by said member as the heddle frame moves in the opposite direction. i

13. In a Warp stopmotion for looms, the combination with a heddle frame having a series of heddles supported by Warp threads, of a movable detector bar mounted-in the heddle frame,the;heddles being formedv to engage and lockthebar"against movement -vvhen al warp hthread',"breaks, and `means adaptedto stop fthe loom When'tlie detector bar `is locked, said i'i'ieans 4comprising a member inountedy for mot'fenjientnvith the heddle frame and pivo-tally movable relative tothe detector baigfand also with the latter duringfitsdetecting m vement, means on the loom trame adapted 4to be engaged as the heddle lrame moves'in `one direction kto impart a detecting movement to said bar and to movek said member, and an element onthe Vloom frame adapted to be engaged by said `member as the heddle frame moves inthe opposite direction. .i

Y le- In` a Warp stop motion for looms, the

ucombination with a heddle frame having a series ofy heddles supported by warp threads, of `a. movable detector bar mounted Y in; the heddle'rframe, the heddles being kformed to engage and lock the bar against movementivhen ka Warp thread breaks, and means adapted, to stop the loom lwhen the ydetector bar is locked, said zmeans `comprising a pair ot vertically spaced engageable elements mounted Y on the loom mdependent of t-he heddle frame, means mounted for Lmovement with the heddle trameand movable thereon adapted toengage said elements, one of said elements be-y ing adapted to impart a detecting ,movement to the bar and tlieother being adaptedto be engagedby saidk means on the heddleframe to stop the loom when the bar is locked. Y

15. vIn a Warp stopmotion for looms, the combination With a heddle frame having a Aseries of hveddles, l supported by Warp threads, ofa movabledetector bar mounted in the` heddle, frame, the heddles being formed to engage` and lock the bar against movement when a warp thread breaks, and means adapted to` stop the loom when the detector bar is locked, said means comprising a-{pair ofvertically 7spaced engageable elements mounted on the loom? independent of the heddle frame, means mounted for movement with the heddle frame and mov able thereon adapted to engage said elements, one ot said elements being adapted to impart a detecting movement tothe bar, and the other being adapted to be engaged by said means on the heddle frame to stop the loom when the bar is locked, said means on the heddle frame having a movement adapted to carry it linto and out of position to engage the said other element and being movable by the detector bar.

16. In a Warp stop motion Jfor looms, the combination with a heddle frame having a series of heddles supported by Warp threads, oi' a movable detector bar mounted in the heddle frame, the heddles being formed to engagey and lock the bar qOainst movement lilo Ulf)

adapted to stop the loom when the detector bar is'locked, said means comprising a pair of vertically spaced engageable elements mounted on the loom independent of the heddle frame, means mounted for movement with the heddle frame and movable thereon adapted to engage said elements, one of said elements being adapted to impart a detecting movement to the bar, and the other being of a movable detector bar mounted in the heddle frame, the heddles being formed to engage and lock the bar against movement when a warp thread breaks, and means adapted to stop the loom when the detector bar is locked, said means comprising a pair of vertically spaced engageable elements mounted on the loom independent of the heddle frame, means mounted for movement with the heddle frame and movable thereon adapted to engage said elements, one of said elements being adapted to impart a detecting movement to the bar, and the other being adapted to be engaged by said means on the f heddle frame to stop the loom when the bar is locked, said means on the heddle `frame having a movement adapted to carry it into and outof position to engage the said other element, and being movable through the der tector bar,and means for vertically adjusting said elements relative to one another, whereby to vary the point of contact of said means on the heddle frame therewith.

18. In a warp stop motion for looms, the combination with a heddle frame having a series of heddles supported by Warp threads, of a movable detector bar mounted in the yheddle `trame, the heddles 'being formed 7to engage and loolrthe ybar against movement when ra vwarp 'thread breaks, and means adapted to stop the loom when the detector bar is locked by a fallen heddle, said means comprising a pair of vertically spaced'felements mounted on the loom independent of the harness frame, one of said elements being `yieldable and having connections therewith whereby to effect stoppage of the loom when c said element lis moved, ineans'mo'vablewith the heddle frame and relativethereto and to the detector bar adapted to engage one elef ment `to give they bar a detectingk movement and to engage said last mentioned element When'the detector bar is locked, saidmeans being movable withthe detector bar into and out-of position to engage said last -mentioned element. f

19. In a warp stop motionffor'looms,the

combination with a heddle `frame, having a series of heddles supported by warp threads, of a' movable detector bar lmounted in the heddle frame, the heddlesf'beingformed to engage andrlock the bar against movement when Aa Warp thread breaks,` and means adapted to stop theloom 'when the detector bar is locked by a fallen heddle, said means comprising'a pair of vertically spaced elements mounted on the loom independent of the harness frame, one ofsaid elements being yieldable and having connections therewith whereby to effect stoppage of the loom when said element is moved, means for vertically adjusting said elements relative to one anf other, means movablewiththe heddle frame and relative thereto and to the detector bar adapted to engage oneelement to give the bar a detecting movementiand to engage said bar'is locked, said means being movable with the detector bar into and out of position to engage -said last mentioned' element. V

In testimonyf'whereof I have hereunto set my hand; l f HARRY E. KI-IOURY'.

8s last mentioned 'element when the-detector 

